document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=93691>Question 93691</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0534465390/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A number is drawn at random from the numbers 1 through 20. The probability the number is a multiple of 3 is:\r<BR>\n" );
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document.write( "A box contains 4 red and 5 green balls. Three balls are drawn. The probability 2 red and 1 green are drawn is:<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #68245 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=68245\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A number is drawn at random from the numbers 1 through 20. The probability the number is a multiple of 3 is:<BR>\n" );
document.write( "Multiples of 3 are 3,6,9,12,15,18<BR>\n" );
document.write( "Prob(condition stated) = 6/20 = 3/10<BR>\n" );
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document.write( "A box contains 4 red and 5 green balls. Three balls are drawn. The probability 2 red and 1 green are drawn is:<BR>\n" );
document.write( "# of ways to get 2 red = 4C2 = 6<BR>\n" );
document.write( "# of ways to get 1 green = 5C1 = 5<BR>\n" );
document.write( "So # of ways to meet the condition = 6*5 = 30<BR>\n" );
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document.write( "# of ways to pick 3 balls with no condition = 9C3 = [9*8*7]/[1*2*3] = 84<BR>\n" );
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document.write( "Prob(stated condition) = 30/84 = 15/42 = 5/14<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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